Lecture 10: Predicting Ionic Formulas and Naming Ionic Compounds
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12 Terms
What is an ion?
An element whose proton and electron counts are not equal
What is a cation?
An ion with a positive charge
What is an anion?
An ion with a negative charge
What is ionic charge for Ag (silver)?
+1
What ionic charge does Zn (Zinc) and Cd (Cadmium) form?
+2
Why do atoms form ions?
They want to achieve a full valence shell of 8 electrons
What ions to metals form?
cations
What ions do nonmetals form?
anions
How are ionic bonds formed?
Through the attraction of a positive ion to a negative ion (charge attraction). The ions will add to one another until the charge is neutralized.
What is an ionic compound?
Usually between a nonmetal, and a metal. It is formed through the charged attraction of ions to form a neutral compound
What is a polyatomic ion?
Ions that contain more than one element but have a single charge. Usually covalently bonded non-metals.
What is the only difference between writing monoatomic ions and polyatomic ions?
When you need more than one polyatomic ion in a compound, you must place parenthesis around it
Note 
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